<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>hello</title>
    <link rel="stylesheet" href="js/bootstrap/css/bootstrap.min.css">
    <script src="js/jquery/jquery.min.js"></script>
    <script src="js/bootstrap/js/bootstrap.min.js"></script>
</head>
<body>
<button type="button" class="btn btn-primary" data-toggle="button" aria-pressed="false" autocomplete="off">hello</button>
</body>
</html>